HTML cookies are some kind of data that is stored on your computer/ phone through your web browser while browsing. Cookies stores information such as your browsing history, and other kind of information which make you have a good browsing experience.
One good thing about cookies is that it can help you to quickly fill form online on a website using information you have previously entered in another website.
Some people don’t like cookies because it records their browsing history or make some other people log on to a website they have previously visited on their computer because it auto filled the login details for them.
You can control how cookies work or even disable it completely. However disabling cookies isn’t recommended. Some websites may not even work at all if cookies is not enabled.
To control how HTML cookies work, visit the help page of your browser.
How to control Cookies in Google Chrome
Click the 3 dots icon at the top right of the browser window.
Select Settings.
Scroll down to the bottom and click, site settings, in the advanced section.
Then click Cookies, there you will be given options to control how cookies should work for you.